13 t2mi modulation settings – DekTec DTC-300 StreamXpress User Manual

Page 57

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DTC-300-SP – StreamXpress

USER MANUAL

57

NOTE: The total bitrate of the component selected must be less than the channel rate for each

segment. If the selected component rate is higher than that channel rate, this display will turn red

and an error will be generated.

#7 Total:
This display represents the total number of segment used for the broadcast. It adds all segments

selected for layer A, B and C.

3.5.12.4 Message center and pre-set configuration

This section displays any error and allow user to select pre-set configuration.

Variable

Type

Description

Details Diag

Message

Center

Display

Field

Displays is the configuration is valid and point to any error

1

TMCC

parameters

Drop

down

Load the TMCC parameters present in the 204 byte packet TS

file (If present)

2

Initial settings Drop

down

Load the original settings of the modulation

3

3.5.13 T2MI Modulation settings

If the DekTec Adaptor is licensed to support T2 modulation, the user can select the T2-MI

modulation mode.
To enable Single Frequency Network (SFN) operation, decisions on allocation and scheduling are

taken once in a T2-Gateway, the results of which are distributed in such a format that each

modulator in the network can unambiguously create an identical on-air signal. The DVB-T2

Modulator Interface (T2-MI) defines this format and allows reliable networks of transmitters (in both

MFN and SFN configurations) to be constructed.

When a T2MI file encapsulated into a MPEG-2 TS is open, the StreamXpress will use the information

contained in the T2-MI file to modulate the output signal. The user can only change the output

frequency of the RF channel.

1

3

2

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